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Power distribution network energy efficiency evaluation method and device

A distribution network, energy efficiency technology, applied in the direction of data processing applications, system integration technology, instruments, etc., can solve the problem of not being able to provide the basis for the construction and transformation of the distribution network, the lack of a clear understanding of the location and severity of the distribution network, and the distribution network Lack of energy efficiency and other issues to achieve high rationality

Pending Publication Date: 2022-01-18
INNER MONGOLIA POWER GRP
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Problems solved by technology

[0004] However, the existing technology lacks a systematic and scientific evaluation of the energy efficiency of the distribution network, lacks a clear understanding of the location and severity of existing and upcoming problems in the distribution network, and cannot provide a good basis for the construction and transformation of the distribution network. According to the basis, there are still many problems in the transformed distribution network, which cannot meet the requirements of the majority of users.

Method used

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  • Power distribution network energy efficiency evaluation method and device
  • Power distribution network energy efficiency evaluation method and device
  • Power distribution network energy efficiency evaluation method and device

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Embodiment 1

[0069] Embodiment 1 of the present invention provides a distribution network energy efficiency evaluation method, the process of which is as follows figure 1 shown, including the following steps:

[0070] Step S11: For the preset distribution network model, determine the model parameter change rate according to the model and the model parameter data of the distribution network.

[0071] In one embodiment, it may include: for each preset distribution network model, obtain partial derivatives for each model parameter of the model, and determine the change rate relational expression of each model parameter; according to the model parameter data and the model of each model The rate-of-change relationship of the parameters determines the rate of change of the parameters of the model.

[0072] Specifically, the above models may include a transformer model and a line model of the distribution network. Calculate the partial derivative of each model parameter of the model, and determ...

Embodiment 2

[0092] Embodiment 2 of the present invention provides a specific application implementation of a distribution network energy efficiency evaluation method.

[0093] The pre-established distribution network models are transformer and line models. Referring to Table 1 below, the pre-constructed distribution network energy efficiency index system can include three levels of energy efficiency indicators. The third level of energy efficiency indicators, that is, the highest level of energy efficiency indicators includes distribution network main equipment and distribution network system ; The energy efficiency index of the next level of the main equipment of the distribution network includes the safety of the main equipment of the second level, the reliability of the main equipment and the economy of the main equipment, and the energy efficiency index of the next level of the distribution network system includes the system power supply of the second level capacity, system reliabilit...

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Abstract

The invention discloses a power distribution network energy efficiency evaluation method and device. The method comprises: determining a model parameter change rate according to a preset power distribution network model and model parameter data of a power distribution network, and determining a sensitivity coefficient of each energy efficiency index in energy efficiency index data to each model parameter in the model parameter data through correlation analysis of the energy efficiency index data of the power distribution network and the model parameter data; according to the model parameter change rate and the sensitivity coefficient, determining an importance degree value representing the importance degree of the influence of the energy efficiency index on the energy efficiency; determining a weight value of each energy efficiency index according to the importance value of each energy efficiency index on the energy efficiency influence; and determining an energy efficiency score of the power distribution network according to the weight value of each energy efficiency index and the obtained value of each energy efficiency index. The energy efficiency score, determined by the scheme, of the power distribution network has higher rationality, accuracy and practicability, and supervision, management and scheduling of the power distribution network can be better guided.

Description

technical field [0001] The invention relates to the technical field of data analysis and evaluation, in particular to a method and device for evaluating energy efficiency of a distribution network. Background technique [0002] The distribution network refers to the power network that receives electric energy from the transmission network or regional power plants, and distributes it locally through power distribution facilities or to various users step by step according to voltage. Features. [0003] With the continuous increase of my country's economic strength, power users in all walks of life have higher and higher requirements for the quality and reliability of power supply of distribution networks, especially in recent years, new energy vehicles, new household appliances and coal reform The performance of new types of electricity demand such as electric heating is particularly significant, which also requires the development of distribution network to be more refined in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y02E40/70Y02P90/82Y04S10/50
Inventor 赵墨林张晓虎王鹏王渊程晓磊
Owner INNER MONGOLIA POWER GRP
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